“I’ve been here 23 years and it’s certainly been going on since I started here.

“With the internet it’s easier for people to arrange meetings.

“The more resources you put into that side of the park – we’ve tried locking it – all it does is, it moves on to the next car park. We’ve got five of them.

“We get problems on the car parks with straight couples as well, not just gay people. We would just ask them to please keep away.”

Sergeant Mark Douglas, of Leyland Police, said: “The issues have recently been made aware to me. Patrols of the area have increased. We’re increasing patrols, particularly in the evening and at night time.

“From the information we’ve got, incidents during the day are extremely rare.

“We’re currently working with the local authority and will investigate further from a multi-agency approach. We want to reassure the public and ask them to contact us if they witness any such activity or any other criminal activity there.”